diff options
Diffstat (limited to 'target/linux/ipq806x/patches-4.4/174-cpufreq-dt-Add-missing-rcu_read_lock-for-find_device_opp.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-4.4/174-cpufreq-dt-Add-missing-rcu_read_lock-for-find_device_opp.patch | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/target/linux/ipq806x/patches-4.4/174-cpufreq-dt-Add-missing-rcu_read_lock-for-find_device_opp.patch b/target/linux/ipq806x/patches-4.4/174-cpufreq-dt-Add-missing-rcu_read_lock-for-find_device_opp.patch deleted file mode 100644 index 124272154f..0000000000 --- a/target/linux/ipq806x/patches-4.4/174-cpufreq-dt-Add-missing-rcu_read_lock-for-find_device_opp.patch +++ /dev/null @@ -1,33 +0,0 @@ -From dafae9c5b39e2871bfd8db0b4bad6e850e42ef49 Mon Sep 17 00:00:00 2001 -From: Georgi Djakov <georgi.djakov@linaro.org> -Date: Wed, 13 Jan 2016 15:10:25 +0200 -Subject: cpufreq-dt: Add missing rcu_read_lock() for find_device_opp() - -The function dev_pm_opp_get_notifier() must be called with held -rcu_read_lock. In order to keep the pointer valid, add rcu_read_lock(). - -Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> ---- - drivers/cpufreq/cpufreq-dt.c | 3 +++ - 1 file changed, 3 insertions(+) - ---- a/drivers/cpufreq/cpufreq-dt.c -+++ b/drivers/cpufreq/cpufreq-dt.c -@@ -359,14 +359,17 @@ static int cpufreq_init(struct cpufreq_p - - mutex_init(&priv->lock); - -+ rcu_read_lock(); - opp_srcu_head = dev_pm_opp_get_notifier(cpu_dev); - if (IS_ERR(opp_srcu_head)) { - ret = PTR_ERR(opp_srcu_head); -+ rcu_read_unlock(); - goto out_free_priv; - } - - priv->opp_nb.notifier_call = opp_notifier; - ret = srcu_notifier_chain_register(opp_srcu_head, &priv->opp_nb); -+ rcu_read_unlock(); - if (ret) - goto out_free_priv; - |